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CVE-2023-42119

Status Candidate

Overview

Exim dnsdb Out-Of-Bounds Read Information Disclosure Vulnerability. This vulnerability allows network-adjacent attackers to disclose sensitive information on affected installations of Exim. Authentication is not required to exploit this vulnerability. The specific flaw exists within the smtp service, which listens on TCP port 25 by default. The issue results from the lack of proper validation of user-supplied data, which can result in a read past the end of an allocated buffer. An attacker can leverage this in conjunction with other vulnerabilities to execute arbitrary code in the context of the service account. Was ZDI-CAN-17643.

Related Files

Gentoo Linux Security Advisory 202402-18
Posted Feb 19, 2024
Authored by Gentoo | Site security.gentoo.org

Gentoo Linux Security Advisory 202402-18 - Multiple vulnerabilities have been discovered in Exim, the worst of which can lead to remote code execution. Versions greater than or equal to 4.97.1 are affected.

tags | advisory, remote, vulnerability, code execution
systems | linux, gentoo
advisories | CVE-2023-42114, CVE-2023-42115, CVE-2023-42116, CVE-2023-42117, CVE-2023-42119, CVE-2023-51766
SHA-256 | baabebed21673e40b564e5721f4a8c2ad8b2d62a34a694a4ab0c3fd9b9eddfdc
Download | Favorite | View
Ubuntu Security Notice USN-6455-1
Posted Oct 30, 2023
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 6455-1 - It was discovered that Exim incorrectly handled validation of user-supplied data, which could lead to memory corruption. A remote attacker could possibly use this issue to execute arbitrary code. It was discovered that Exim incorrectly handled validation of user-supplied data, which could lead to an out-of-bounds read. An attacker could possibly use this issue to expose sensitive information.

tags | advisory, remote, arbitrary
systems | linux, ubuntu
advisories | CVE-2023-42117, CVE-2023-42119
SHA-256 | 323c6ff2a013a77f6d6aa929e97a11a9e629fa736c7266c0bfa1231fe81b46e8
Download | Favorite | View
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